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PDP
2005
IEEE
14 years 2 months ago
Tuning Dynamic Web Applications using Fine-Grain Analysis
In this paper we present a methodology to analyze the behavior and performance of Java application servers using a performance analysis framework. This framework considers all lev...
Jordi Guitart, David Carrera, Jordi Torres, Eduard...
ICDE
2002
IEEE
104views Database» more  ICDE 2002»
14 years 10 months ago
Efficient Evaluation of Queries with Mining Predicates
Modern relational database systems are beginning to support ad hoc queries on mining models. In this paper, we explore novel techniques for optimizing queries that apply mining mo...
Surajit Chaudhuri, Vivek R. Narasayya, Sunita Sara...
ICDE
2001
IEEE
111views Database» more  ICDE 2001»
14 years 10 months ago
Overcoming Limitations of Sampling for Aggregation Queries
We study the problem of approximately answering aggregation queries using sampling. We observe that uniform sampling performs poorly when the distribution of the aggregated attrib...
Surajit Chaudhuri, Gautam Das, Mayur Datar, Rajeev...
CSSE
2008
IEEE
14 years 3 months ago
A Study of E-learning Architecture Based on Knowledge Innovation
—This paper reveals weaknesses of existing e-learning system and puts forward a novel architecture of five layers from the perspective of knowledge innovation. Learner interface ...
Qinglong Zhan, Chengyang Chang
MSS
2007
IEEE
91views Hardware» more  MSS 2007»
14 years 2 months ago
Attribute Storage Design for Object-based Storage Devices
As storage systems grow larger and more complex, the traditional block-based design of current disks can no longer satisfy workloads that are increasingly metadata intensive. A ne...
Ananth Devulapalli, Dennis Dalessandro, Pete Wycko...